Improved pegging-machine



N. PETERS, PHOTO-LITHOGHAPMER, WASHINGTON. D. C,

PATENT EETCE.

VALTER FITZGERALD, OF SALEM, MASSACHUSETTS.

IMPROV,ED PEGGlNG-NIACHINE.

Specification forming part of Letters Patent'No. 35,7119, dated July 1,1862.

.T0 all whom it may concern.-

Beit known that l, WALTER FITZGERALD, of the city of Salem, in thecounty of Essex, in the State of Massachusetts, have invented certainnew and useful Improvements in PeggingMachines, and I do hereby declarethat the following, taken in connection with the drawings whichaccompany and form part of this specification, is a description of myinvention sufficient to enablethose skilled in the art to practice it.

I have embodied my invention in a machine by which the peg-hole is madeand the peg driven in the sole by proper instruments actuated by therecoil of springs, compressed and liberated at the proper times byrotating cams. The sole is moved under the pegging mechanism by meanspatented by me May 22, 1860, by which, and by the oscillation of themovable head which carries the pegging mechanism, the horizontalcurvatures of the sole are provided for, while the vertical curvaturesare accommodated by the rising and falling of the head, the sole movingonly in horizontal planes.

My invention consists in relieving the cams which compress the springsof the pressure consequent upon the compression thereof by causingthebars which are actuated by the springs to rest on fixed stops afterthey are elevated sufficiently to compress the springs the requisiteamount, so that for the remainder of the rotation of the said cams thefriction which would be consequent upon the resting of said bars on thecams is avoided, and the machine in consequence runs with a lessexpenditure of power than it would without this part of my invention;also, in the provision whichl make for the peg nearest, but not under,the driver, whereby Iam enabled to use a solid piston to close the openside of the pegtube through which the peg is passed, instead of usingthe knife for the purpose of closing said tube, the purpose of whichprovision being to avoid breakage of knives and thederangement of themachine; also, in the arrangement or combination or its substantialequivalent of the gearing by which rotation of the cam-shaft iseffectedwhile permitting its elevation and depression and theoscillation of the head upon said shaft.

Figure 1 is a front elevation of a pegging machine embodying myinvention. Fig. 2 is a sectional side elevation, the section being takenin the line x 00,!Fig. l. Fig. 3 is a detailed ViewV showing the springand the form of the cam which act upon the driver-bar. Fig. 4 is a rearview in detail of the peg-wood box, the peg feeding and cuttingmechanism, and the gage.Y Fig. 5 is a sectional plan in detail, showingthe peg feeding and cutting mechanism and the piston which closes theopen side of the peg-tube. Fig. 6 shows in detail parts which relate tothe cutting and the control of the peg.

In describing the drawingsI shall refer only to such parts as areembodied in or are necessarily connected with my invention, inasmuch asmachines similar to that shown in general features are known to and usedby the public.

a and aare, respectively, the awl and driverbars. These are so arrangedthat they can be moved in the direction of thelength ofthe head, and sothat their lower ends can have a sidewise movement upon the head, theupper bearing on each bar being the center of its oscillation. Themovements of these bars are performed under the influence of the springs1),' onev of which acts on each bar, and is so arranged as to becompressed by the lifting of the bar,and so that in said movement itthrowsV the free end of the bar outward from the center of the head overrests forming xed parts of the head, so that when the rotations of thecams c and c have respectively raised the bars a and a to their greatestelevation, the parts d and d of the bars are left bearing on the restswhile the cams aand c rotate away from the bars. A lever, e, of theforni shown in Fig. l,is hung at e in such a way that the alternatelifting of the bars by the cams brings the upper sides of theprojections f and f alternately against the lower edge of the lever e,causing the end thereof opposite the end acted upon by the rising bar tomove the bar at rest from its seat when it is driven downward by itsspring, either making a hole in the sole or driving a peg, according asthe bar actuated by the spring may be either a or c. The side movementof a and ct' outward, unlike other pegging-machines, is not caused by apositive movement, butby an inclined set ofthesprings, but the sidemovement in the descent of the bars is made positive by means ofinclines forming parts of the bars and head. The shaft g, upon which thecams c and c' are fixed, is connected with the head by suitablebearings, which it overhangs at each end. These projecting ends of theshaft fit in grooves made in the side frames and steady and guide thehead in its movements, the shaft g being the center of oscillation forthe head.

Two radius-bars, h, of equal length,keep the shaft z always parallelwith and equidistant from shaft g, so that the equal gears j and j',which are fast on each of the shafts g and t, will always work equallyinto each other without regard to position. The shaft i is keptsubstantially in one horizontal plane by boxes in which it is free torotate, said boxes being held in slotted openings in the frames, free tomove backward and forward in said slots as the head changes itsposition. The shaft i having the same angular velocity with g, I iix onit the cam K, which operates to feed the sole under the peggingmechanism through the lever Z, as specified in my before-mentionedpatent.

If a pulley is placed on the shaft i, to be rotated by means of a beltrunning Vertically,it is plain that the shaft can move back and forwardwith the boxes in the horizontal slots in the frame, as with belting ofordinary length from above or from below there would be no practicaldifference between the arc described by the belt in movements of theboxes and the chord of said arc.

My peg-box is designed to receive strips of peg-wood, which are fedonward to the pegtube by a spur-wheel operated intermittently by aratchet-wheel and pawl, which are worked against the resistance ofspring m by lever n, which is operated from cams on shaft g throughlever o. The same lever, n, is made to work the plunger p, which closesthe fourth or open side of ltue peg-box, and which plunger also operatesto cut the pegs from the peg strip by forcing it against the knife q.

In the arrangement shown in the drawings, especially in Fig. 5, but onepeg is cut in advance of that in the peg-tube, the knife beingstationary and the peg-wood being forced upon it by the plunger when itmoves to close the peg-tube preparatory to the peg therein being driventhrough the tube into the sole.

As the peg-wood is'moved laterally by p when the peg is out from thewood, it is neoessary to provide some means for bringing the peg-woodand the separated peg back into line with the peg-tube, so that the pegcan be fed into the tubewhen the aWl is withdrawn there'- from,^at orbefore which time the plunger p has Withdrawn and left the side of thetube open for admission of the peg. This means isv found in the springr, which is pressed backward as the plunger forces the peg-wood upon thesole, during which time the plunger has withdrawn to open the peg-tube,and as soon as the awl has withdrawn the peg-feed operates to set a pegwithin the peg-tube. The plunger is then moved forward, closing thepeg-tube and cutting off another peg, and the driver-bar isliberated andforced downward, driving the peg within the tube into the sole. Afterthe driver has withdrawn the sole is fed along and under the peggingmechanism, and the described operations are repeated indefinitely. Asthe peg-wood is sharpened on that edge which forms the points of thepegs, a pointed instead of a chisel-edged peg is formed by bifurcatingthe lower part of the knife and providing a passage for the escape ofthe chips formed by the fork of the knife in pointing the pegs.

' Itis evident that the knife may be made movable instead of stationary,and may be made to operate anywhere between the peg-tube and thepeg-wood feed, in which case the functions of the piston will be limitedto closing the pegtube, in doing which it will force out of the line ofthe peg-tube one or more pegs, laccording to the thickness of thepiston, and the spring i" will return them into line as the piston opensthe side of the tube.

In this modification of the peg-cutting and peg-tube-closing apparatusthe plunger should be slightly wedge-shaped on the side next the unmovedpegs, to crowd them slightly backward, so that they will not interferewith the replacement of the pegs by the spring r,which spring will thenbe made plain and not with theprovision shown in the drawings forpassing around the stationary knife. The operative manipulates the shoeby hand under the iniuence of ,the shoe-,feed and keeps the edge of thesole pressed up vagainst the gage s, the distance of which from thecenter of the pegtube regulates the distance of the pegs from the edgeof the sole, and where there is more than one row of pegs, it gages thedistance apart of the rows.

It is of importance to have an efficient and simple device for changingthe distance of the gage from the peg-tube center, as this change has tobe made without stopping the operation of the machine. The gage consistslof a roll which is pivoted to a movable slide, t, which bears the leveru. This lever serves as handle by which the slide t can be moved towardthe tube-box. It has a projection on the end nearest the tubebox, which,when the gage is placed nearest the tube-box, is, by depression of u,forced through an aperture in the slide against the immovable part ofits beare'f` and resists the thrust of the sole against the rest. Thisposition of .these parts is shown in black lines in Fig. 2.v To peg thesecond row all that is needed is to raise the lever u to the positionshown in redlines in Fig. 2, and the thrust of the shoe will move thegage back to the position requisite for peggng the second row.

I claim'- 1. In a pegging mechanism, relieving the rotating cam or camswhich lift the aWl-bar or driver-bar, or both, from the pressure of acompressed spring or springs brought upon said cam or cams in elevatingsaid bar or bars during that time of the rotation of said cam or cams inwhich said bar or bars are required to remain at rest in their highestelevation by transferring the contact and pressure of said bar or barsfrom said cam or cams to a stop or stops, from which said bar or barscan be detached at the proper times, substantially as specified.

2. Combining the piston p and spring r, so that the peg or pegsdisplaced by the piston in its movement to close the pegtube shall bereplaced by the spring in the line of the pegtube when the piston movesto open the tube.

3. Combining the piston p and spring 7' and (plane While its distancefrom the center of the driven shaft remains unaltered in the differentpositions which the head assumes in pegging, and by which I am enabledto connect the shafts i and g by spur-gearing.

' VALTER FITZGERALD. Witnesses:

AUGs. S. BROMER, EDWD. SMITH.

